Výsledky vyhľadávania - "Finite differences"

Polarization-desensitization dynamically adjustable quintuple plasmon-induced transparency multi-frequency modulator based on graphene metamaterial.

Autori: Zhou, Fengqi Ji, Cheng Liu, Zhimin a ďalší

Zdroj: Journal of Applied Physics. 10/14/2024, Vol. 136 Issue 14, p1-10. 10p.

Predmety: *FINITE differences, *AMPLITUDE modulation, *FERMI level, *OPTOELECTRONIC devices, *METAMATERIALS, *FINITE difference time domain method

A third-order finite difference weighted essentially non-oscillatory scheme with shallow neural network.

Autori: Park, Kwanghyuk Chen, Xinjuan Lee, Dongjin a ďalší

Zdroj: Applied Numerical Mathematics. Dec2025, Vol. 218, p1-21. 21p.

Predmety: *FINITE differences, *CONSERVATION laws (Physics), *STENCIL work

A MULTIGRID-BASED FOURTH ORDER FINITE DIFFERENCE METHOD FOR ELLIPTIC INTERFACE PROBLEMS WITH VARIABLE COEFFICIENTS.

Autori: REN, YIMING ZHAO, SHAN

Zdroj: International Journal of Numerical Analysis & Modeling. 2025, Vol. 22 Issue 6, p860-896. 37p.

Predmety: *FINITE differences, *LAPLACIAN operator, *BOUNDARY value problems, *FAST Fourier transforms, *ITERATIVE methods (Mathematics), *MATHEMATICAL optimization

A higher-order solver for the FitzHugh-Nagumo equation by combining nonstandard and compact finite difference scheme.

Autori: Li, Zhi-Chen Yu, Yang-Wen Zhang, Xiao-Yu a ďalší

Zdroj: Applied Numerical Mathematics. Nov2025, Vol. 217, p436-450. 15p.

Predmety: *FINITE differences, *STABILITY (Mechanics), *INTEGRALS, *APPROXIMATION error, *ITERATIVE methods (Mathematics), *DIFFERENTIAL equations, *ERROR analysis in mathematics

A High-Order Accurate Scheme for 2D Fractional Mixed Diffusion and Diffusion-Wave Equation.

Autori: An, Wenjing Wei, Leilei Zhang, Xindong a ďalší

Zdroj: Computational Mathematics & Mathematical Physics. Oct2025, Vol. 65 Issue 10, p2425-2438. 14p.

Predmety: *FINITE differences, *FRACTIONAL calculus, *ERROR analysis in mathematics, *HEAT equation, *STABILITY theory, *FRACTIONAL differential equations

A high-order numerical method and its analysis for solving a three-dimensional time-fractional advection–diffusion model.

Autori: Roul, Pradip Pathak, Vivek

Zdroj: Zeitschrift für Angewandte Mathematik und Physik (ZAMP). Oct2025, Vol. 76 Issue 5, p1-37. 37p.

Predmety: *FINITE differences, *COMPUTATIONAL complexity, *MATHEMATICS, *ADVECTION-diffusion equations, *EQUATIONS, *ALGORITHMS

Analytical and numerical solitary wave solutions of the (2+1) q-deformed Tanh-Gordon equation: novel insights and applications.

Autori: Ali, Khalid K. Raslan, K. R. Mohamed, Mohamed S. a ďalší

Zdroj: Zeitschrift für Angewandte Mathematik und Physik (ZAMP). Oct2025, Vol. 76 Issue 5, p1-21. 21p.

Predmety: *FINITE differences, *SYMMETRY breaking, *SYSTEM dynamics, *ANALYTICAL solutions, *EQUATIONS

Numerical analysis of American option pricing in a two-asset jump-diffusion model.

Autori: Zhou, Hao Dang, Duy-Minh

Zdroj: Applied Numerical Mathematics. Oct2025, Vol. 216, p98-126. 29p.

Predmety: *GREEN'S functions, *FINITE differences, *VISCOSITY solutions, *TOEPLITZ matrices, *FAST Fourier transforms

Improving the precision of forces in real-space pseudopotential density functional theory.

Autori: Roller, Deena Rappe, Andrew M. Kronik, Leeor a ďalší

Zdroj: Journal of Chemical Physics. 8/21/2024, Vol. 161 Issue 7, p1-13. 13p.

Predmety: *DENSITY functional theory, *FINITE differences, *VIBRATIONAL spectra, *SMALL molecules, *INTERPOLATION

Pre-tensorial alternative direction implicit method for nonlocal diffusion equations.

Autori: Sun, Tao Ng, Michael K. Sun, Hai-Wei

Zdroj: Mathematics & Computers in Simulation. Dec2025, Vol. 238, p306-321. 16p.

Predmety: *HEAT equation, *FINITE differences

A parallel iterative algorithm for solving the two-dimensional Helmholtz equation with discontinuous coefficients using a high-order compact finite difference scheme.

Autori: Zheng, Jinyang Feng, Xiufang

Zdroj: Mathematics & Computers in Simulation. Dec2025, Vol. 238, p179-188. 10p.

Predmety: *HELMHOLTZ equation, *FINITE differences, *DISCONTINUOUS coefficients, *LINEAR equations, *LINEAR systems, *PARALLEL algorithms

A novel BDF-spectral method and its error analysis for Cahn–Hilliard equation in polar geometry.

Autori: Zheng, Jihui Pan, Zhenlan An, Jing

Zdroj: Mathematics & Computers in Simulation. Nov2025, Vol. 237, p145-166. 22p.

Predmety: *SOBOLEV spaces, *FINITE differences, *NONLINEAR systems, *GEOMETRY, *EQUATIONS

Numerical simulation of wave flow : Integrating the BBM-KdV equation using compact difference schemes.

Autori: Polwang, Apipoom Poochinapan, Kanyuta Wongsaijai, Ben

Zdroj: Mathematics & Computers in Simulation. Oct2025, Vol. 236, p70-89. 20p.

Predmety: *FINITE differences, *FINITE difference method, *DIFFERENCE operators, *NUMERICAL analysis, *DIFFERENTIAL equations

Advantages of the Samarskii-type schemes on the Shishkin mesh

Autori: Vulanović, Relja Nhan, Thái Anh

Zdroj: Journal of Computational and Applied Mathematics. 470

Predmety: 4901 Applied Mathematics (for-2020), 46 Information and Computing Sciences (for-2020), 49 Mathematical Sciences (for-2020), Singular perturbation, Convection-diffusion, Shishkin mesh, Finite differences, Uniform convergence, 0102 Applied Mathematics (for), 0103 Numerical and Computational Mathematics (for), 0906 Electrical and Electronic Engineering (for), Numerical & Computational Mathematics (science-metrix), 4613 Theory of computation (for-2020), 4901 Applied mathematics (for-2020), 4903 Numerical and computational mathematics (for-2020)

Popis súboru: application/pdf

Prístupová URL adresa: https://escholarship.org/uc/item/5p64t416
https://escholarship.org/content/qt5p64t416/qt5p64t416.pdf

Higher-order generalized finite differences for variable coefficient diffusion operators.

Autori: Kraus, Heinrich Kuhnert, Jörg Suchde, Pratik

Zdroj: Computers & Mathematics with Applications. Sep2025, Vol. 194, p257-271. 15p.

Predmety: *FINITE differences, *MESHFREE methods, *NUMERICAL calculations, *BOUNDARY value problems, *LAPLACIAN operator, *DIFFUSION gradients, *STATISTICAL accuracy

A second-order maximum bound principle-preserving exponential Runge–Kutta scheme for the convective Allen–Cahn equation.

Autori: Wang, Yan Wang, Haifeng Zhang, Hong a ďalší

Zdroj: Computers & Mathematics with Applications. Sep2025, Vol. 193, p297-314. 18p.

Predmety: *PHYSICAL mobility, *FINITE differences, *ENERGY dissipation, *ADVECTION, *EQUATIONS, *ADVECTION-diffusion equations

High-order numerical method for solving elliptic partial differential equations on unfitted node sets.

Autori: Nielsen, Morten E. Fornberg, Bengt

Zdroj: Computers & Mathematics with Applications. Sep2025, Vol. 193, p103-116. 14p.

Predmety: *FINITE differences, *NEUMANN boundary conditions

A Hybrid DST-Accelerated Finite-Difference Solver for 2D and 3D Poisson Equations with Dirichlet Boundary Conditions.

Autori: Pei, Jing Tong, Xiaozhong

Zdroj: Mathematics (2227-7390). Sep2025, Vol. 13 Issue 17, p2776. 17p.

Predmety: *POISSON'S equation, *FINITE differences, *MECHANICAL efficiency, *NUMERICAL analysis, *COSINE transforms, *DIRICHLET principle

On the Coefficients in Finite Difference Series Expansions of Derivatives.

Autori: Banks, J. W. Henshaw, W. D.

Zdroj: SIAM Journal on Numerical Analysis. 2025, Vol. 63 Issue 5, p2009-2025. 17p.

Predmety: *FINITE differences, *NUMERICAL analysis, *DISCRETIZATION methods, *ERROR analysis in mathematics, *SERIES expansion (Mathematics), *DERIVATIVES (Mathematics), *FOURIER series

Treatment of non-physical solutions of the oxygen diffusion in soil by physics-informed neural network.

Autori: Ivanović, Miloš Savović, Svetislav Kuzmanović, Ljubica a ďalší

Zdroj: Sādhanā: Academy Proceedings in Engineering Sciences. Sep2025, Vol. 50 Issue 3, p1-8. 8p.

Predmety: *SOILS, *FINITE differences, *CONCENTRATION gradient, *MACHINE learning, *LOSS functions (Statistics), *BOUNDARY value problems, *DIFFUSION kinetics